2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36010The thermal nature of the propagator in a collapsed black-hole spacetime is shown to follow from the non-trivial topology of the configuration space in tortoise coordinates by using the path integral formalism.5 pages, Revtex, 1 figure. To appear in the proceedings of the Eighth Marcel Grossmann Meeting on General Relativity. (Jerusalem, Israel, June 1997)General Relativity and Quantum Cosmologytext